Oil purifier



F. E. CORWIN.

OIL PURIFIER- APPLICATION FILED JULY 12, 1919.

s SHEETSSHEET I.

F. E. CORWIN.

' OIL PURIFIERL APPLICATION FILED JULY 12, 1919. 1,404,931 I PatentedJan. 31, 1922.

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OIL PURIFIER- APPLICATION FILED JULY 'I2, 1919.

1",404,93 1. n I Patented Jan. 31, 1922.

' I 3 SHEETS-SHEET 3- iuuran stares raran'ro FRANK E. conwnv, or'ronnno, OHIO, assicrnor. TO THE narrower, OIL .ruarrinn ooiaranv, orronnno, onio, a ooaronarron or 03810.

OIL PURIFIEB.

incense.

Specification Letterfiatefit. Patented Jan. 31, 1922.

Application filed duly 12, 1919. Serial No. 310,350.

To all "whom it may concern:

Be it known that I, F RANK E. ConwrN, a citizen of the UnitedStates,-residing at T0- ledo, in the. county of Lucas and State of Ohio,have invented certain new and useful Improvements in Oil Purifiers; andi do declare the following to be a full,jclear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccoinpanyindrawings, and to the letters and figures of reference markedthereon, which form a part of this specification.

My invention relates to a device for purifying oils which have been usedfor lubricating purposes, and is designed to remove dirt, sediment andmetallic particles from such. oils in order to render them fit forreuse. This invention-is intended to provide improvements uponthe deviceillustrated in the United States Letters Patent granted to me November23, 1915, Number 1,161,197, and is designed to simplify and to reduce incompass the apparatus described in said patout, as well as to render theparts more accessible. My invention is also intended to provideautomatic control of the devices for withdrawing the heavier liquidswhen separated by gravity from the oils, as well as for feeding theoils, when so separated, to the purifying devices.

The invention is fully described in the following specification, andwhile in its broader aspect it is capable of embodiment in numerousforms, a preferred embodiment thereof is illustrated in the accompanyingdrawings, in which- Figure 1 is a front elevation of my purifyingapparatus; Fig. 2, a central, vertical, sectional elevation of the same,seen from the right of the view in Fig. 1; Fig. 3, a sectionalplan-view, taken on line m-zr, Fig. 1; Fig. 4:, a sectional plan-view,taken on line y-y, Fig. 1; Fig. 5, a central, vertical, sectionalelevational of a portion of my device, taken on line 2-2, Fig. 3; 6, anelevation, partly in section and on an enlarged scale, of a portion ofmy apparatus, taken on line 'v'v, Fig. 3; Fig. 'l, a top plan-view ofthe magnet-case hereinafter referred to, detached, and Fig. 8, acentral, longitudinal, vertical, sectional elevation of said case.

Like numerals of reference indicate like parts throughout the drawings.

In the d awings, 1 is an upright metal cvlindrical case or drum closednear its bottom by a diaphragm and having through the center of its topan. opening into which is fitted a funnellike vessel 3 having aremovable lid 1. The vessel 1 is provided with a diaphragm 5 whichdivides the interior of the vessel into two principal chambers 6 and 7.The oil to be purified is poured into the vessel 3 and flows downwardlythrough the sieve-like tube 8 into the upper chamber. Inmachineshoppracticethcse oils are usually mixed with an excess of water.The oils quickly separate from and rise to the top of the water. One ofthe objects of my invention is to now automatically remove and waste thewater without disturbing the remaining oils which are to be purified andtransferred to and stored in the lower chamber 7.

To effect the removal of the water there is provided a waste-pipe 9having, near the bottom of the chamber 6, an upturned mouth 10 whichforms a seat for a float-valve 11' provided with a vertical stem 12which slides in suitable guides which insure the proper seating of thevalve. This valve 11 is of such regulated buoyancy that it will float inwater while in oil it will remain seated. Upon the upper chamber 6 beingcharged with a mixture of oil and water the two liquids will, by reasonof their difference in gravity, slowly separate. When the float isimmersed in the lower stratum, water, it will rise and the water willnow be siphoned down through waste-pipe 9 and down-pipe 95- (See Fig.5). When the descending upper stratum of oil reaches and partly bathesthe float 11 the fioats buoyancy is insufficient to hold it in elevatedposition. The float now drops into closed position preventingfurther'escape of liquid through the pipe 9. When the accumulatingoil'in the chamber 6 reaches a sufficient height it overflows throughpipe 13 and passes down through this pipe and discharges into the lowerpart of the device illustrated in Figs. 7 and 8 and now to be described.

14 is a narrow, elongated, rectangular, metal case the mouth of which isflanged and covered with a plate 15 through the lower part of which pipe13 enters, and from the upper part 01 which pipe 16 emerges. lhe flangesof the case 14; cover with a tight lit the margin of an opening in thedrum 1, which opening is just large enough to permit the introductionor" the case 14-. By uncoupling the unions in the pipes lid-16 andremoving the screws l5 from the plate 15 the case'l with its magnets maybe removed for cleansing. In the case 14 are supported upon a bolt 17and separating pieces 18 two powerful permanent horseshoe magnets 19,arranged as shown, with their poles overlapping each other, their edgestouching the sides of the case 14-, the bend of one magnet touching theback end oi. the case, and with the bend of the other magnet touchingthe front cover of the case. This arrangement is such that oil enteringthrough pipe 18 must traverse a sinuous course along each pole of eachof the magnets in order to reach the outlet from the case through thepipe 16. The pipe 16 discharges, as illustrated in Figs. 1 and 4, intothe lower chamber 7. In its sinuous course along and between the polesof the magnets, metallic particles suspended in the oil are attracted,caught, and retained by the poles of the magnets, thus rendering the oilfit for re-use.

Both chambers 67 are provided with suitable gauge-glasses, cocks andhand-holds which will be understood without illustration or explanation.

20 is a steam-pipe which supplies steam to steam-coils in the upper andlower chambers 6-7, to warm the oil to render it more fluid and topromote its flow.

Having described my invention, What I claim and desire to secure byLetters Patent is,-

'1. In an apparatus of the described character, a vessel divided into anupper and a lower chamber, combined with a conduit leading from theupper to the lower chamber, said conduit including a casing removablysecured in' the wall of the lower chamher, and a series of magnetsmounted in said casing.

2. In an apparatus of the described character, an oil receptacle havingan opening through its wall, a case removably fitted to said opening andin communication with said receptacle, magnets in said case disposed toform a sinuous path torliquids traversing the chamber of said case, anddevices for feeding oil to said case.

3. In an apparatus of the described character, an oil receivingreceptacle, magnets removably secured in said receptacle and havingtheir poles opposed and overlapping ach other,a case for themagnets, asupplypipe leading into the lower part of? the case, and a dischargeoutlet from the upper part of the case leading into said oil receivingreceptacle, the arrangement being such that oil entering said casetraverses both poles of each or" said magnets. V

In testimony whereof I afiix my in presence of two witnesses.

FRANK E. CORWIN.

signature I Witnesses MARK WINCHESTER, GRAon SMITH.

